Performance of a Large Scale Nonequilibrium MHD Generator with Rare Gases; Erratum PDF Download
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Author: B. Zauderer
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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An experimental study was performed of the operating characteristics of a large linear, supersonic MHD generator. A shock tunnel was used to heat the test gases, which was primarily a 99 percent neon + 1 percent xenon mixture, to stagnation pressures of 1 to 5 atmospheres, temperatures of about 3500 degrees K, and electron densities on the order of 10 to the power of 10/cc. The test time of 5 milliseconds, which was about 10 times the traversal time of the gas through the generator, was sufficient to produce quasi-steady state conditions in the channel. (Author).
Author: B. Zauderer
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
An experimental study was performed of the operating characteristics of a large linear, supersonic MHD generator. A shock tunnel was used to heat the test gases, which was primarily a 99 percent neon + 1 percent xenon mixture, to stagnation pressures of 1 to 5 atmospheres, temperatures of about 3500 degrees K, and electron densities on the order of 10 to the power of 10/cc. The test time of 5 milliseconds, which was about 10 times the traversal time of the gas through the generator, was sufficient to produce quasi-steady state conditions in the channel. (Author).
Author: B. Zauderer
Publisher:
ISBN:
Category :
Languages : en
Pages : 68
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Book Description
An experimental study was performed of the operating characteristics of a large linear, supersonic MHD generator. A shock tunnel was used to heat the test gases, which was primarily a 99 percent neon+1 percent xenon mixture, to stagnation pressures of 1 to 5 atmospheres, temperatures of about 3500K, and electron densities on the order of 10 to the 10th power /cc. The test time of 5 milliseconds, which was about 10 times the traversal time of the gas through the generator, was sufficient to produce quasi-steady state conditions in the channel. It was concluded that electrode conduction losses and shock wave formations were the two major factors limiting the efficiency of this generator. (Author).
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Category : Aeronautics
Languages : en
Pages : 304
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Author: Plamen Raytchev Karavassilev
Publisher:
ISBN: 9789090036717
Category :
Languages : en
Pages : 140
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 982
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Author: Bert Zauderer
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ISBN:
Category :
Languages : en
Pages : 19
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The report presents a summary of the progress during the past year on a continuing investigation aimed at determining the operating characteristics of the linear, non-equilibrium MHD generator. The main effort of the past year was concentrated on reducing the electrode losses in the generator by using heated electrodes which protruded into the gas stream. Using an MHD channel, which was specially constructed for this purpose, large scale electrical power was obtained for the first time in cesium seeded, noble gases at gas stagnation temperatures as low as 2000K. Various electrode structures, both hot and cold, were investigated; but the electrode design was not as important as the cesium concentration in determining the electrode drops. During the past year, construction of a larger MHD channel and of a considerably more powerful MHD magnet and power supply were nearly completed. (Author).
Author:
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Category : Technology
Languages : en
Pages : 1484
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ISBN:
Category : Hydrofoil boats
Languages : en
Pages : 236
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Author: B. Zauderer
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
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An experimental study was performed of the operating characteristics of a linear, supersonic Faraday generator, having heated wire electrodes suspended in the gas flow. The test gases were argon, neon, helium seeded with 0.8% cesium. It was observed that locating the electrode outside the cold boundary layer greatly reduced the current ignition voltage at the electrodes below that obtained previously with flush mounted electrodes. However, heating the electrodes to 1600K temperatures produced no significant improvement in the electrode performance over that obtained with room temperature electrodes at current densities of about 10 amp/sq/cm. In both cases, the electrode conduction was through arc spots with cathode losses of about 60V. (Author).
Author: American Institute of Aeronautics and Astronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 542
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